Swift_Signers_SMimeSigner::copyFromOpenSSLOutput PHP Method

    protected function copyFromOpenSSLOutput(Swift_OutputByteStream $fromStream, Swift_InputByteStream $toStream)
    {
        $bufferLength = 4096;
        $filteredStream = new Swift_ByteStream_TemporaryFileByteStream();
        $filteredStream->addFilter($this->replacementFactory->createFilter("\r\n", "\n"), 'CRLF to LF');
        $filteredStream->addFilter($this->replacementFactory->createFilter("\n", "\r\n"), 'LF to CRLF');
        while (false !== ($buffer = $fromStream->read($bufferLength))) {
            $filteredStream->write($buffer);
        }
        $filteredStream->flushBuffers();
        while (false !== ($buffer = $filteredStream->read($bufferLength))) {
            $toStream->write($buffer);
        }
        $toStream->commit();
    }